/Engine/Plugins/Interchange/Runtime/Source/FactoryNodes/Public/InterchangeAnimationTrackSetFactoryNode.h
This function allow to retrieve the number of track dependencies for this object.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Interchange | Node | AnimationTrackSetFactory") int32 GetCustomAnimationTrackUidCount() const